Lamp.



' No. 672,879. Patented Apr. 23. l90l.

u. TOLTZ &IA. LIPSCHUTZ.

' LAMP.

(Application filed Mar. 19, 1900.)

(No Model.)

hvvew-fo RS 7 MAX. TOLTZ .J-

\/ T 3 ARTHUR LIPSCHUTZ BY}? THEIRAYTTQRVNEYS UNITE STATES- PATENT OFFICE.

MAX TOLTZ AND ARTHUR LIPSCHUTZ, OF ST. PAUL, MINNESOTA.

LAMP.

SPECIFIGATIGN forming part of Letters Patent N0. 672,879, dated April 23, 190i.

Applioationfiled March 19, 1900. Serial No. 9,173. (No modell;

To all whmn it may concern.-

Be it known that we, MAX TOLTZ and AR- THUBLIPSCHUTZ, of St. Paul, Ramsey county, State of Minnesota, have invented certain new and useful Improvements in Lamps, of which the following is a specification.

This invention relates to oil and gas lamps; and the object of the invention is to provide a lamp that will not be extinguished by sudden drafts or winds.

Theinvention consists generally in the combination, with the burner, of a globe closed at the bottom beneath the burner, a hood for the top of the globe and provided with a central outlet for the products of combustion and also having an annular duct leading downward within the globe to supply fresh air to the burner.

The invention will be more readily understood by reference to the accompanying drawings, in which- Figure l is a vertical section of a gas-lamp embodying our invention. Fig. 2 illustrates an oil-lamp embodying our invention.

In the drawings, 2 represents the burner, supplied with gas through a pipe 3.

4 is a solid bottom imperforate except for a small hole 5, having a cover 6, through which a lighter may be inserted to light the gas. The bottom 4 is preferably provided with a groove 7, in which is a suitable packing 8, upon which the lower edge of the glass chimney or globe 9 rests. There are no airholes at the base of the globe.

9' represents a hood and reflector provided at the apex with an outlet 10, which is preferably covered by the small hood 11.

12 and 13 are two rings or thimbles that depend from the hood 9. Between the thimbles are three ormore cross-strips 14:, which rest upon the upper edge of the globe or chimney and support the hood, leaving a small space between the hood and the top of the globe, so that a double annular duct is formed around the top of the globe or chimney. The bottom 4 serves as afixture for the globe, and the hood is secured in place by means of the standard 15,rising fromthe bottom and having the screw-nut 16 on its upper end. When the nut is taken 0E, the hood may be removed from the globe. Afterward the globe may be lifted 0E over the standard for the purpose of cleaning or replacing the globe. The gas being lighted, the product-s of combustion will rise through the center of the globe and pass out through the tortuous passage between the two hoods, while fresh air will be drawn down from the duct between the top of the globe and the thimble 13. The cool air falls to the bottom of the globe, and the flame is thus maintained. The downward-moving currents of cool air and the upward-moving products of combustion may be further separated, if desired, by the introduction of an inside chimney, as shown in dotted lines, Fig. 1. This inside chimney when used makes a substantially tight joint with the thimble 13, while a large opening is left between the lower end of the inside chimney and the bottom 4 for the passage of air.

In Fig. 2 we have illustrated the invention as applied to oil-lamps and particularly as applied to vestibule-lamps for railway-coaches. We modify the ordinary construction by intr'oducing a metal chimney 18 above the glass lamp l9 and leading to the outlet-opening beneath the hood. The usual construction is also modified by the provision of air-inlet holes 20 beneath the hood, and through which air enters and falls to the bottom of the large inclosing globe of the lamp, from which the air passes through the ordinary lamp-burner 23 to maintain the flame within the chimney 19.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- 1. In a lamp, the combination, with a closed bottom 4 and a burner provided thereon, of a globe having imperforate walls resting upon said bottom, a hood 9 provided over the open top of said globe andhaving adischarge-opening, concentric rings depending from said hood and between which a space is provided to receive the top of said globe, cross bars or strips connecting said rings and resting upon the edge of said globe, whereby an air-inlet passage is formed between said hood and globe leading to the interior of the latter, and a second hood or shield provided over said discharge-opening, substantially as described.

2. In alamp, the combination, with aclosed bottom 4, of a burner thereon, a globe having imperforate walls resting upon said bottom, a hood 9 provided over the open top of said globe and having a discharge-opening, concentric rings depending from said hood and having a space between them adapted to receive the top of said globe, cross bars or strips connecting said rings and resting upon the edge of said globe, whereby an air-passage is formed between said rings leading to the interior of said globe, at second hood provided over said discharge-opening, a standard 15 resting upon said bottom and supporting said second hood and also adapted to support a chimney within said globe above the lower portion of the same and said bottom, for the purpose specified.

3. In alamp, the combination, withaclosed bottom 4, and a burner thereon, of a globe having imperforate walls resting upon said bottom, a hood provided over the open top of said globe and supported thereon and provided with a discharge-opening, an air-passage being provided between said hood and the top of said globe leading to the interior thereof, a'second hood provided over said discharge-opening and spaced from said firstnamed hood, and a standard 15 supported on said bottom and extending above said hoods and adapted to support a chimney Within said globe above said bottom and the lower portion of said globe, substantially as described. In testimony whereof we have hereunto set our hands this 5th day of March, 1900.

MAX TOLTZ. ARTHUR LIPSOHUTZ. In presence of R. D. HAWKINS, W. E. BARNACLE. 

